Gasification method for reducing emission of carbon dioxide

摘要

The present invention relates to a method for gasifying a carbon-containing material, comprising the following steps: (a) permitting the carbon-containing material to react to steam in the presence of a catalyst so as to generate synthetic gas containing hydrogen, carbon monoxide, carbon dioxide, etc.; (b) applying a portion of the synthesis gas obtained in step (a) to a combustion process, and/or separating hydrogen and carbon monoxide from the synthetic gas to generate carbon dioxide rich gas; and (c) re-circulating the carbon dioxide rich gas generated in step (b) to step (a). The method of the present invention eliminates the necessity of separating or collecting and storing carbon dioxide for reducing carbon dioxide, thus minimizing costs for constructing a special device and facility for the separation or collecting and storage of the carbon dioxide.